66652966 has 8 divisors (see below), whose sum is σ = 100709640. Its totient is φ = 33083088.

The previous prime is 66652961. The next prime is 66652973. The reversal of 66652966 is 66925666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66652961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121356 + ... + 121903.

It is an arithmetic number, because the mean of its divisors is an integer number (12588705).

Almost surely, 2^66652966 is an apocalyptic number.

66652966 is a deficient number, since it is larger than the sum of its proper divisors (34056674).

66652966 is a wasteful number, since it uses less digits than its factorization.

66652966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243398.

The product of its digits is 699840, while the sum is 46.

The square root of 66652966 is about 8164.1267751058. The cubic root of 66652966 is about 405.4523543945.

The spelling of 66652966 in words is "sixty-six million, six hundred fifty-two thousand, nine hundred sixty-six".